Hi Victor,

Arrays of opcodes seem tricky as the opcodes need to be allocated at
run-time versus being compiled down as the array intiailization is a
variable.  I don't think there is currently any dynamic opcode
allocation within the engine, so that would have be added there, as
well as in the language.

Though, it is possible to do variable amount of opcodes already using
recursive UDO's, though the mechanism for that is different that
allocating opcodes at runtime.

steven


On 9/22/06, Victor Lazzarini <victor.lazzarini@nuim.ie> wrote:
> I think definitely we should look into adding
> loops, as well as variable/opcode arrays. I am
> thinking on the lines of the following syntax:
>
> a1[] arrayinit 10
>
> for ki=0, ki < 10, ki = ki + 1
> a1[ki] oscil 10000, kfun*ki, 1
> endfor
>
> Of course this is just an example, perhaps we will
> need to call a-, k-, i-variable arrays something else
> (va, vk, vi ?).
>
> This would also mean that 10 separate oscillators would be
> created, and the outputs are stored in a1[0]-a1[9].
>
> Now this is not only syntatic sugar, but a major
> addition to the language. Not sure how it would
> implemented, but it would be very nice.
>
> > Hi All,
> >
> > Just another update with the new parser.  I've now gotten
> > to the point of getting labels and goto's working.  From
> > here on my list I have:
> >
> > -if-goto
> > -if-then-elseif-else
> > -UDO's
> > -functions
> > -polymorphic opcodes (need to check if this isn't done)
> > -macros
> > -memory clean up
> > -cleaning up grammar
> > -error reporting
> > -general cleaning up of files
> >
> > I am mostly going in the above order and am continuing to
> > work by creating a test first then working to make the
> > test work.
> >
> > Also, I thought CsoundAV had some sort of while loop
> > construct using:
> >
> > while (bool expression)
> >   .. opcode statements ..
> > wend
> >
> > but I could not find anything like this in the
> > documentation (maybe it was just a suggested idea on the
> > mailing list a long time ago).  The question I'm wondering
> > is should while loops and for loops be added to Csound?
> > It's all syntactic sugar, but it's convenient.  (For-loops
> > would need a different delimiter though between statements
> > as semicolons are comments).
> >
> > steven
> >
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